The quote from Robin McKinley's "The Door in the Hedge" reflects the idea that time causes even the most established legends to evolve and transform. It suggests that no matter how legendary a story may be, it is subject to change as the world progresses. This fluidity of legends points to the dynamic nature of cultural narratives and beliefs over time.

Additionally, the phrase hints at the existence of boundaries—both literal and metaphorical—that might deter individuals from seeking new experiences or truths. Despite such barriers, there remains a sense of hope that someone will bravely choose to overcome these obstacles, highlighting the human spirit's quest for exploration and understanding. The imagery of "thorns" accentuates the challenges faced in crossing these borders.